baber/WOPTO huggingface dataset:
Patent JP-2023117095-A (JP)
Title: Refrigerating device
Inventor: KIYA TOYOAKI
IPC: F25B1/00
Filed: 2022-02-10
Abstract: To provide a refrigerating device that can appropriately supply oil separated by oil separators to compressors depending on a situation.SOLUTION: A refrigerating device comprises: a plurality of refrigerating units each comprising a compressor, an oil separator, an oil return pipe, and a heat dissipation heat exchanger; one pressure reducing valve connected to the heat dissipation heat exchangers of the plurality of refrigerating units; and an oil return control mechanism for controlling a return destination of oil separated by the oil separators of the plurality of refrigerating units. The oil return control mechanism comprises: an oil supply pipe connecting the oil return pipes of the plurality of refrigerating units; a flow control mechanism arranged in the oil supply pipe, and for controlling a state in which the oil in the oil supply pipe flows; and discharge control mechanisms arranged closer to the side of the oil separators than connection positions in the respective oil return pipes with the oil supply pipe, and for controlling a state in which the oil is discharged from the oil separators.SELECTED DRAWING: Figure 1
Patent JP-2022081491-A (JP)
Title: Injection syringe
IPC: A61M5/315
Filed: 2022-02-15
Abstract: PROBLEM TO BE SOLVED: To provide an injection syringe to be used in ophthalmologic injection. 
     SOLUTION: An injection syringe 1 includes a body 2, a stopper 10, and a plunger 4. The body includes an outlet 12 at an outlet end part. The stopper is disposed inside the body so that the front face of the stopper and the body define a variable capacity chamber 18, and can push fluid out of the variable capacity chamber through the outlet. The plunger includes a plunger contact surface 22 at a first end part, and a rod 26 extends between the plunger contact surface and the rear part. The plunger contact surface is configured so as to come in contact with the stopper, but not to be connected to the stopper so that the plunger can be used to decrease the capacity of the variable capacity chamber by pushing the stopper toward the outlet end part of the body, but the plunger cannot be used to move the stopper away from the outlet end part. 
     SELECTED DRAWING: Figure 2 
     COPYRIGHT: (C)2022,JPO&INPIT
Patent JP-2022163688-A (JP)
Title: Dynamic memory with persistent retain architecture and cleanup circuit
Inventor: Lu chao-chun
IPC: G11C11/4091
Filed: 2022-02-16
Abstract: To provide a DRAM with persistent retain architecture.SOLUTION: A DRAM has a first supply voltage source for generating a voltage level corresponding to a signal ONE utilized by a DRAM chip, and a DRAM cell including an access transistor and a holding capacitor. The first voltage level is higher than a voltage level corresponding to a signal ONE, and the first voltage level is generated by a first sustaining voltage generation unit. The first sustaining voltage generation unit is electrically coupled to the holding capacitor of the DRAM cell during a turn-off period of the access transistor of the DRAM cell. A cleanup circuit is provided to reduce the difference between the voltage on BL/BLB and a target reference voltage during equalization.SELECTED DRAWING: Figure 15C
Patent JP-2022066249-A (JP)
Title: Information processing device, communication system, information processing method, and program
IPC: H04W28/06
Filed: 2022-02-22
Abstract: PROBLEM TO BE SOLVED: To improve efficiency of wireless communication. 
     SOLUTION: A communication system includes a first information processing device and a second information processing device. On the basis of information relating to a packet to be transmitted to the second information processing device, the first information processing device determines an amount of information to be used for a receipt acknowledgment with respect to the packet, and performs control to notify the second information processing device of the determined amount of information. On the basis of the amount of information notified from the first information processing device, the second information processing device performs control to send, as a reply to the first information processing device, the receipt acknowledgment with respect to the packet transmitted from the first information processing device. 
     SELECTED DRAWING: Figure 5 
     COPYRIGHT: (C)2022,JPO&INPIT
Patent JP-2023122108-A (JP)
Title: Hot water storage hot water system
Inventor: ONO MASAHIDE
IPC: F24H1/18
Filed: 2022-02-22
Abstract: To provide a hot water storage hot water system which allows: hot water in a hot water storage tank to be taken out through a hot water tap, and to provide a hot water storage hot water system which can withdraw the hot water in the hot water storage tank to an in-house hot water tap, or can withdraw the hot water to an outdoor withdrawal passage.SOLUTION: A hot water storage hot water system (1) comprises: a hot water storage tank (4) for storing hot water; a heater (3) for heating the hot water in the hot water storage tank (4); and an exterior case (16) for accommodating the hot water storage tank (4) and the heater (3). The hot water storage hot water system is provided with: a drain water passage (43) connected to a bottom part of the hot water storage tank (4), and having a drain water tap (43a) at a downstream-side end part; and a bypass passage (44) branched from a portion on the hot water storage tank (4) side with respect to the drain water tap (43a), of the drain water passage (43), and connected to a portion outside the exterior case (16), of a hot water supply passage (21).SELECTED DRAWING: Figure 1
Patent JP-2023122790-A (JP)
Title: Fireproof heat insulation sheet
Inventor: KATAYAMA NAOKI
IPC: F16L59/02
Filed: 2022-02-24
Abstract: To provide a fireproof heat insulation sheet with excellent refractory and adiabaticity.SOLUTION: A fireproof heat insulation sheet comprises: a heat insulation layer having a porous structure in which a plurality of particles is connected to form a skeleton, has pores inside, and has a hydrophobic site at least on the surface and inside; a first refractory layer made of a heat-resist fiber sheet, which is arranged on one side in a thickness direction of the heat insulation layer; and a second refractory layer laminated on the first refractory layer, and having one or more flame retardants selected from an intumescent flame retardant and expanded graphite, and an organic binder.SELECTED DRAWING: Figure 1
Patent JP-2023125438-A (JP)
Title: Biogas power generation system
Inventor: FUJIMOTO TAKUYA
IPC: C02F11/04
Filed: 2022-02-28
Abstract: To provide a biogas power generation system which can be employed even when an installation space is limited.SOLUTION: A biogas power generation system includes a solid-liquid separator (4), a gasifier (5) which generates biogas by anaerobic fermentation of solids supplied from the solid-liquid separator, and a power generator (7) which generates electricity using biogas supplied from the gasifier as fuel. The biogas power generation system includes gas generation amount determination means (10) which determines whether or not a gas generation amount by the gasifier falls within a specified range, and temperature adjustment control means (10) which adjusts the temperature of the gasifier by adjusting the amount of exhaust heat from the power generator side to the gasifier if the gas generation amount determination means determines that the gas generation amount is out of the specified range.SELECTED DRAWING: Figure 1
Patent JP-2023128493-A (JP)
Title: Motor control device and motor control method
Inventor: YAMANAKA TOMOYA
IPC: H02P21/22
Filed: 2022-03-03
Abstract: To provide a motor control device capable of suppressing the influence of the rotational speed of a motor on output torque of the motor.SOLUTION: A motor control device includes a target torque determination part, an Id determination part (522), an Iq determination part (524), and a control part. The Id determination part (522) determines a d-axis current command value (Id1) on the basis of the rotational speed (ω) of a motor, target torque (Tr1), and information for preliminarily associating the d-axis current command value (Id1) with the rotational speed (ω) of the motor and the target torque (Tr1). The Iq determination part (524) determines a q-axis current command value (Iq1) on the basis of the d-axis current command value (Id1), the target torque (Tr1), and a prescribed relation expression. The control part controls the drive of the motor on the basis of the d-axis current command value (Id1) and the q-axis current command value (Iq1).SELECTED DRAWING: Figure 5
Patent JP-2023128593-A (JP)
Title: Capability estimation program, capability estimation method and capability estimation device
Inventor: MIYAMOTO AKINORI
IPC: G06Q50/20
Filed: 2022-03-03
Abstract: To provide a capability estimation program, a capability estimation method and a capability estimation device that can estimate capability of a subject from processing data even when there is no data of a correct answer.SOLUTION: A capability estimation device 100 collects processing data S processed by a subject for a problem and related data R indicating processing time, and converts the processing data S to different binary data depending on whether the processing data indicates an answer being deemed as a correct answer for the problem or indicates an answer being deemed as other than the correct answer, of answers of whole subjects for the problem. The capability estimation device 100 estimates a first estimation result S1 including a plurality of parameters by means of an item reaction theory of binary data input, and generates a second estimation result S2 which is obtained by multiplying the plurality of parameters of the first estimation result S1 by -1. The capability estimation device 100 calculates correlation between a value of a parameter of a portion of the plurality of parameters of the first estimation result S1 and the second estimation result S2 and the collected related data, and outputs either of the first estimation result S1 or the second estimation result S2 on the basis of the correlation.SELECTED DRAWING: Figure 1
Patent JP-2023131493-A (JP)
Title: Semiconductor device
Inventor: OGURO TATSUYA
IPC: H01L25/07
Filed: 2022-03-09
Abstract: To provide a semiconductor device capable of improving avalanche resistance.SOLUTION: A semiconductor device includes: a substrate having conductivity and a second thickness; a first chip which includes a first surface facing the substrate and a second surface positioned opposite to the first surface, and in which a first electrode electrically connected with the substrate is arranged on the first surface, and a second electrode is arranged on the second surface; a second chip which includes a third surface facing the second surface and a fourth surface positioned opposite to the third surface, and in which a third electrode is arranged on the third surface, and a fourth electrode is arranged on the fourth surface; a first connector arranged between the second electrode and the third electrode, and electrically connected with the second electrode and the third electrode; and a second connector which is electrically connected with the substrate and the fourth electrode, and includes a first part positioned above the second chip, and in which a difference between a first thickness of the first part and a second thickness is not larger than 20% of a larger one among the first thickness and the second thickness.SELECTED DRAWING: Figure 5
Patent JP-2022066564-A (JP)
Title: Method and system for multiple-f-number lens
IPC: G02B13/14
Filed: 2022-03-11
Abstract: PROBLEM TO BE SOLVED: To provide a method and system for a multiple-F-number lens. 
     SOLUTION: An imaging lens includes one or more lens elements configured to receive light in a first wavelength range reflected off one or more first objects and focus it on an image plane, and to receive light in a second wavelength range reflected off one or more second objects and focus it on the image plane. The imaging lens further includes an aperture stop and a filter positioned at the aperture stop. The filter includes a central region and an outer region surrounding the central region. The central region of the filter is characterized by a first transmission band in the first wavelength range and a second transmission band in the second wavelength range. The outer region of the filter is characterized by a third transmission band in the first wavelength range and substantially low transmittance values in the second wavelength range. 
     SELECTED DRAWING: Figure 3 
     COPYRIGHT: (C)2022,JPO&INPIT
Patent JP-2023140171-A (JP)
Title: digital phase shifter
Inventor: UEMICHI YUSUKE
IPC: H01P1/185
Filed: 2022-03-22
Abstract: To provide a digital phase shifter capable of suppressing a decrease in the amount of phase shift of a digital phase shift circuit caused by connection of ground patterns of another circuit.SOLUTION: In a digital phase shifter consisting of a plurality of digital phase shift circuits connected in cascade, which includes a signal line, a pair of inner lines provided on both sides of the signal line, a pair of outer lines each provided outside the inner line, a first ground conductor connected to one end of each of the inner line and the outer line, a second ground conductor connected to each other end of the outer line, and a pair of electronic switches located between each other end of the inner line and the second ground conductor, the plurality of digital phase shift circuits have a multi-row structure consisting of a front row and a back row, and the front row and the back row are adjacent to each other, and a ground pattern is connected to the front row at one point.SELECTED DRAWING: Figure 1
Patent JP-2023140213-A (JP)
Title: Curable composition, storage container, and three-dimensional object producing method
Inventor: SHINTANI YUKI
IPC: C08F290/06
Filed: 2022-03-22
Abstract: To provide a curable composition that has excellent inkjet dispensability and allows for the formation of a cured product having both of high strength and high transparency.SOLUTION: A curable composition contains a multifunctional urethane (meth)acrylate monomer (component 1), a (meth)acrylate monomer (component 2), and an inorganic filler (component 3). The mass content ratio of the component 1 to the component 2 (component 1:component 2) ranges from 65:35 to 40:60.SELECTED DRAWING: None
Patent JP-2023141321-A (JP)
Title: Electrophotographic photoreceptor, process cartridge, and image forming apparatus
Inventor: KAWASAKI AKIHIRO
IPC: G03G5/14
Filed: 2022-03-23
Abstract: To provide an electrophotographic photoreceptor that is excellent in fine line reproducibility and prevents the occurrence of positive ghost.SOLUTION: An electrophotographic photoreceptor comprises: a conductive substrate; an undercoat layer provided on the conductive substrate; and a photosensitive layer provided on the undercoat layer. The amount of change in the mass of the undercoat layer at a temperature of 130°C or more and 155°C or less in differential scanning calorimetry is 0.1 mass% or less.SELECTED DRAWING: None
Patent JP-2023142782-A (JP)
Title: display device
Inventor: TAKAHASHI HIDEYUKI
IPC: G06F3/041
Filed: 2022-03-25
Abstract: To provide a display device that has a new structure.SOLUTION: The display device comprises: a first dam that encloses a display region and a second dam that encloses the first dam; first and second sensor electrodes that overlap the display region; and first and second sensor wiring lines that are provided on the first dam and electrically connect to the first and second sensor electrodes, respectively; a first wiring line that is provided below the second dam and electrically connects to the first sensor wiring line at a first contact section; a second wiring line that is provided below the second dam and electrically connects to the second sensor wiring at a second contact section. The first and second contact sections are located between the first and second dams. The second dam overlaps the first wiring line in a first superposition section and overlaps the second wiring line in a second superposition section. The second dam has a recess between the first and second superposition sections in a plan view that is recessed toward the display region.SELECTED DRAWING: Figure 1
Patent JP-2023144922-A (JP)
Title: Knife
Inventor: MISHINA JUNJI
IPC: B26B3/00
Filed: 2022-03-28
Abstract: To provide a knife with high strength that avoids partial thinning of a blade body by grinding a portion of the blade body during knife formation.SOLUTION: A knife comprises: a blade body that is provided, at a back-end section thereof, with a space which is divided in a thickness direction and which is opened at a back-end side; and a handle to be gripped by a user.SELECTED DRAWING: Figure 1
Patent JP-2022166819-A (JP)
Title: Large turbocharged two-stroke internal combustion engine with egr system
Inventor: HERBERT SCHMUTTERMAIR
IPC: F02M26/10
Filed: 2022-03-29
Abstract: To accurately control the oxygen concentration in a scavenge gas receiver in order to meet the emission requirements for both NOx and soot in a large turbocharged two-stroke internal combustion engine.SOLUTION: A large turbocharged multi-cylinder two-stroke uniflow internal combustion engine comprises an EGR system for conveying a flow of exhaust gas from an exhaust system to an intake system. The EGR system comprises an EGR blower 29 and an electronically controlled EGR throttling valve (32, 42). An AC drive motor 33 is used for driving the EGR blower 29. The AC drive motor is configured to operate at a predetermined constant speed. A sensor 27 provides a signal representative of the oxygen concentration in a scavenge gas receiver 2, and the signal is received by a controller 50 coupled to the electronically controlled EGR throttling valve. The controller is configured to control the flow of exhaust gas through the EGR system by adjusting the position of the electronically controlled EGR throttling valve as a function of the signal as a primary measure.SELECTED DRAWING: Figure 4
Patent JP-2023150146-A (JP)
Title: vehicle
Inventor: UEDA SUKEO
IPC: B60J5/00
Filed: 2022-03-31
Abstract: To provide a vehicle which can perform assistance control for assisting in avoidance of a door contact without increasing cost and preventing complication of design.SOLUTION: A vehicle includes a sensor for determining whether an obstacle is present within a prescribed range in a direction in which a door opens; and a camera for capturing a situation of surroundings of the vehicle. The vehicle identifies a movability state of the door on the basis of a change in the situation of the surroundings captured by the camera, the situation indicating a side face on which the door is pivoted. The vehicle determines whether the vehicle is in a prescribed state exceeding a threshold at which the possibility of the open door making contact with the obstacle increases on the basis of the movability state when it has been determined that an obstacle is present and the door is open. If the vehicle is determined to be in the prescribed state, the vehicle performs avoidance assistance control for avoiding a contact with the obstacle.SELECTED DRAWING: Figure 3
Patent JP-2023150928-A (JP)
Title: Article storage material
Inventor: HATTORI HIDEKAZU
IPC: B65D81/07
Filed: 2022-03-31
Abstract: To provide an article storage material capable of reducing impact applied to an article when falling.SOLUTION: The article storage material is provided with: a bottom plate part 32; an internal upper plate part (upper plate part) 21 and an internal lower plate part (lower plate part) 31 that are located above the bottom plate part 32 and arranged to overlap in an upward-downward direction; and a second side plate part (side plate part) 33 for supporting the internal upper plate part 21 and the internal lower plate part 31 above the bottom plate part 32. In the internal upper plate part 21, an upper side opening 211 passing therethrough in an upward-downward direction is formed, and an upper side film 24 for covering the upper side opening 211 is attached thereto. In the internal lower plate part (lower plate part) 31, a lower side opening 311 passing therethrough in an upward-downward direction is formed, and a lower side film 34 for covering the lower side opening 311 is attached thereto. An article 11 can be stored between the upper side film 24 and the lower side film 34. An extension part 35 extending toward the bottom plate part 32 from an edge part of the lower side opening 311 is provided at the internal lower plate part 31.SELECTED DRAWING: Figure 1
Patent JP-2023153537-A (JP)
Title: laser gas analyzer
Inventor: NAKAMURA HAJIME
IPC: G01N21/61
Filed: 2022-04-05
Abstract: To accurately determine failure of a light receiving unit.SOLUTION: A laser gas analyzer 1 includes: a laser diode 14 for irradiating a gas to be measured with a laser beam; a photodiode 31 for receiving the laser beam having passed through the gas to be measured; an operation unit 40 for calculating concentration of components contained in the gas to be measured according to a light quantity of the laser beam received by the photodiode 31; and a LED36 for emitting light so that the light is received by the photodiode 31 without passing through the gas to be measured.SELECTED DRAWING: Figure 1
Patent JP-2023154232-A (JP)
Title: Thermal recording body and image formation method
Inventor: MASUDA AYANO
IPC: B41M5/337
Filed: 2022-04-06
Abstract: To provide a thermal recording body which can suppress color development caused by heating after radiation of ultraviolet light even when an amount of ultraviolet light to be radiated is small.SOLUTION: There is provided a thermal recording body comprising a heat sensitive coloring layer containing an electron donative dye precursor, an electron acceptor compound, a polyfunctional radical polymerizable compound, a mono-functional radical polymerizable compound, and a photo-radical polymerization initiator. At least any of the polyfunctional radical polymerizable compound and the mono-functional radical polymerizable compound includes a (meth)acrylamide group.SELECTED DRAWING: Figure 1
Patent JP-2023154615-A (JP)
Title: Handrail fixing structure and handrail redecorating method
Inventor: NAKAMATSU YASUJI
IPC: E04F11/18
Filed: 2022-04-07
Abstract: To provide a handrail fixing structure allowing fitting of handrail stanchions without removing a wall panel, and dispensing with insertion of a fixing hole through a cap piece, and a redecorating method of the handrail.SOLUTION: A handrail fixing structure 1 is for fixing a new handrail 5 to a spandrel wall 2 having a wall panel 8 fixed to both side faces of a substrate frame 7 and a cap piece 6 formed on the substrate frame 7. The wall panel 8 has a wall panel body 80, and a fitting part 81 formed on a rear face of the wall panel 80, for fixing a fixture 83 to be fixed to the substrate frame 7. A fixing part 33 formed at the lower end of a stanchion 35 of the new handrail 5 abuts on a surface of the wall panel 8, and a penetrating fixture 34 constructible from a front face side of the wall panel 8 penetrates the fixing part 33 and the wall panel body 80 and is fitted to the fitting part 81.SELECTED DRAWING: Figure 1
Patent JP-2023154645-A (JP)
Title: Packaging base paper for sealed container, and method of producing the same
Inventor: YONEYAMA NAHOKO
IPC: D21H11/04
Filed: 2022-04-07
Abstract: To provide packaging base paper for a sealed container not easily breakable when the paper is folded, subjected to impact from outside, and contacted by a sharp object or a protrusion during its distribution.SOLUTION: The present invention relates to packaging base paper for a sealed container, made from pulp as a main component, in which the pulp includes bleached conifer kraft pulp in an amount of at least 70 mass%, and has a specific zero-span tensile strength of at least 0.08 kN-m/g.SELECTED DRAWING: None